Henry Winkler

Arthur 'Fonzie' Fonzarelli (archive footage)

Ron Howard

Richie Cunningham (archive footage)

Erin Moran

Joanie Cunningham (archive footage)

Robin Williams

Mork (archive footage)

Lucille Ball

Lucy Ricardo (archive footage)

Desi Arnaz

Ricky Ricardo (archive footage)

Dick Van Dyke

Rob Petrie (archive footage)

Mary Tyler Moore

Laura Petrie (archive footage)